diff --git a/ChangeLog b/ChangeLog
index 9af29fa3fcd..67790a31953 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,7 @@
 2014-10-14  Jan Djärv  <jan.h.d@swipnet.se>
 
 	* configure.ac: apple-darwin powerpc is unported.
+	Require OSX >= 10.6 even if --with-ns is not given.
 
 2014-10-12  Ken Brown  <kbrown@cornell.edu>
 
diff --git a/configure.ac b/configure.ac
index f346f28f7b3..9757e4ff205 100644
--- a/configure.ac
+++ b/configure.ac
@@ -705,6 +705,13 @@ If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
 Check `etc/MACHINES' for recognized configuration names.])
 fi
 
+case "$canonical" in
+  *-apple-darwin* )
+  x="`uname -r`"
+    case "$x" in
+      [[0-9]].*) AC_MSG_ERROR([OSX 10.6 or later required]) ;;
+    esac
+esac
 
 #### Choose a compiler.